package leyou.service.impl;

import com.github.tobato.fastdfs.domain.StorePath;
import com.github.tobato.fastdfs.service.FastFileStorageClient;
import leyou.UploadApplication;
import leyou.service.UploadService;
import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.List;

/*

 */
@Service
public class UploadServiceImpl implements UploadService {
    private static final List<String> CONTENT_TYPE = Arrays.asList("image/jpeg", "image/gif");
    private static final Logger LOGGER = LoggerFactory.getLogger(UploadApplication.class);
    @Autowired
    FastFileStorageClient storageClient;
    @Override
    public String upload(MultipartFile file) {
        // 校验文件的类型
        String originalFilename = file.getOriginalFilename();
        if (!CONTENT_TYPE.contains(file.getContentType())){
                LOGGER.info("文件类型不合法",originalFilename);
                return null;
        }

        // 校验文件的内容
        try {
            BufferedImage bufferedImage = ImageIO.read(file.getInputStream());
            if (bufferedImage == null){
                LOGGER.info("文件内容不合法",originalFilename);
                return null;
            }
            // 保存到服务器
            //            file.transferTo(new File("C:\\leyou\\images\\" + originalFilename));
            String s = StringUtils.substringAfterLast(originalFilename, ".");//文件后缀
            StorePath storePath = this.storageClient.uploadFile(file.getInputStream(), file.getSize(), s, null);

            // 生成url地址，返回
            return "http://image.leyou.com/" + storePath.getFullPath();
        } catch (IOException e) {
            LOGGER.info("服务器内部错误：{}", originalFilename);
            e.printStackTrace();
        }
        return null;
    }
}

